Barbell Plate Calculator

Stop doing bar maths between sets. Pick your bar, tap the plates you're loading and Adiletix adds it all up — both sides included.

20 kg

Empty bar — tap a plate to load it

Each tap adds one plate to both sides. Tap a plate on the bar to remove it.

Get the plate calculator plus full workout tracking in the Adiletix app.

Download on the App Store Get it on Google Play

How to use the plate calculator

Choose kilograms or pounds, then pick the bar you are lifting on.
Tap each plate you are loading. Every tap adds that plate to both sides of the bar.
Read the total off the top of the card. It already includes the bar, so it is the number to log for the set.

How much does a barbell weigh? Standard bar weights

Bar	Kilograms	Pounds
Barbell – Men's	20 kg	45 lb
Barbell – Women's	15 kg	35 lb
EZ-Curl Bar	7.5 kg	18 lb
Training Bar	10 kg	22 lb
Hex / Trap Bar	25 kg	55 lb

How much does the bar weigh at your gym?

If it is a straight Olympic barbell, 20 kg (45 lb) is the safe assumption — that one is set by competition rules and manufacturers stick to it. Every other bar in the gym is a range, not a standard, because nothing forces two makers to agree.

Bar	Typical range	Notes
Olympic barbell (men's)	20 kg / 45 lb	Standardised. Safe to assume.
Olympic barbell (women's)	15 kg / 35 lb	Standardised. Shorter, thinner grip.
Smith machine bar	5–15 kg / 11–33 lb	Counterweighted. Manufacturer-published start weights; no standard.
Trap / hex bar	20–34 kg / 45–75 lb	Frame size and handle type drive the difference.
Safety squat bar	25–32 kg / 55–70 lb	Padding and yoke add weight over a straight bar.
EZ / preacher curl bar	7–11 kg / 15–25 lb	Short bars vary widely; many are unmarked.
Deadlift bar	20 kg / 45 lb	Same weight as a standard bar, but longer and whippier.

These are typical ranges, not specifications. If the bar is unmarked and the weight matters — and it does the moment you start comparing this month's numbers to last month's — weigh it, or find the manufacturer's spec sheet for the model. The calculator above uses one common value per bar type — if yours is marked differently, or it is a Smith machine, tap Custom and enter the exact number. It is remembered on your device.

Competition plate colours

Calibrated plates follow the IPF colour standard, so you can read a loaded bar without checking a single label. These are the plates the calculator offers:

Plate	Colour
25 kg	Red
20 kg	Blue
15 kg	Yellow
10 kg	Green
5 kg	White
2.5 kg	Black
1.25 kg	Silver

Frequently asked questions

How much does a barbell weigh?: A men's Olympic barbell is 20 kg (45 lb) and a women's Olympic barbell is 15 kg (35 lb). Training bars, EZ-curl bars and trap bars all differ — the full list this calculator uses is in the table above.
How much does the bar weigh?: A standard Olympic barbell weighs 20 kg (45 lb) and a women's Olympic bar weighs 15 kg (35 lb) — both are set by competition rules, so they are consistent between gyms. Every other bar is a range: Smith machine bars are counterweighted, and manufacturers publish start weights between 5 and 15 kg (11 to 33 lb). Trap bars run 20 to 34 kg (45 to 75 lb) and EZ curl bars 7 to 11 kg (15 to 25 lb).
How much does the bar weigh on a Smith machine?: There is no single answer, because the carriage is offset by a counterweight. Manufacturers publish start weights from 5 kg (11 lb) on a Precor Vitality to 13.6 kg (30 lb) on a Hammer Strength, and machines without a counterweight sit around 15 kg (33 lb). It depends on the machine, not on any industry standard. The only reliable ways to know are to check the manufacturer's spec sheet for that model or to measure it yourself.
How do I calculate the weight on a barbell?: Add the weight of every plate on one side of the bar, double it, then add the weight of the bar itself. A 20 kg men's barbell loaded with a 20 kg and a 10 kg plate per side is 20 + (30 x 2) = 80 kg.
Does the plate calculator include the bar?: Yes. Pick your bar at the top of the calculator and its weight is already in the total. Selecting the wrong bar is the single most common source of bar-maths errors.
Do I enter plates per side or in total?: Per side. Each tap adds one plate to both sides of the bar at once, which is how plates are actually loaded. Tap a plate already on the bar to take it back off.
What do the plate colours mean?: They follow the IPF competition standard, so the colour tells you the weight at a glance: in kilos, red is 25, blue 20, yellow 15 and green 10. Not every gym uses coloured plates, but most calibrated sets do.
Is this plate calculator free?: Yes, it is free and needs no sign-up. The same calculator is built into the Adiletix app alongside full workout tracking.

Lifts where the bar weight matters most

Every one of these is logged against a bar that is not always 20 kg. Technique guides in the exercise library:

Barbell Bench Press — targets chest, triceps.
Barbell Back Squat — targets quads, glutes.
Barbell Deadlift — targets glutes, hamstrings.
Trap Bar Deadlifts — targets glutes, hamstrings.
Smith Machine Bench Press — targets chest, triceps.

Individual bar weights

Specialty bars are not standardised the way an Olympic barbell is, so the calculator's preset is a common value rather than a universal one. These guides give the full range for each bar and how to check the one in your gym:

How much does a barbell weigh? — Olympic, women's and unmarked straight bars, plus how standard 1-inch bars differ.
Smith machine bar weight — why the counterweight makes this the hardest bar to pin down, and how to measure yours.
Trap bar weight: how much does a hex bar weigh?
EZ curl bar weight: how much does an EZ bar weigh?
Safety squat bar weight: how much does an SSB weigh?

Working out what to load rather than what is already on the bar? Use the one rep max calculator or the RPE weight calculator to turn your one rep max into a working weight first.

Bar

Kilograms

Pounds

Barbell – Men's

20 kg

45 lb

Barbell – Women's

15 kg

35 lb

EZ-Curl Bar

7.5 kg

18 lb

Training Bar

10 kg

22 lb

Hex / Trap Bar

25 kg

55 lb

How much does the bar weigh at your gym?

Bar	Typical range	Notes
Olympic barbell (men's)	20 kg / 45 lb	Standardised. Safe to assume.
Olympic barbell (women's)	15 kg / 35 lb	Standardised. Shorter, thinner grip.
Smith machine bar	5–15 kg / 11–33 lb	Counterweighted. Manufacturer-published start weights; no standard.
Trap / hex bar	20–34 kg / 45–75 lb	Frame size and handle type drive the difference.
Safety squat bar	25–32 kg / 55–70 lb	Padding and yoke add weight over a straight bar.
EZ / preacher curl bar	7–11 kg / 15–25 lb	Short bars vary widely; many are unmarked.
Deadlift bar	20 kg / 45 lb	Same weight as a standard bar, but longer and whippier.

Plate

Colour

25 kg

Red

20 kg

Blue

15 kg

Yellow

10 kg

Green

5 kg

White

2.5 kg

Black

1.25 kg

Silver

Frequently asked questions

How much does a barbell weigh?

A men's Olympic barbell is 20 kg (45 lb) and a women's Olympic barbell is 15 kg (35 lb). Training bars, EZ-curl bars and trap bars all differ — the full list this calculator uses is in the table above.

How much does the bar weigh?

A standard Olympic barbell weighs 20 kg (45 lb) and a women's Olympic bar weighs 15 kg (35 lb) — both are set by competition rules, so they are consistent between gyms. Every other bar is a range: Smith machine bars are counterweighted, and manufacturers publish start weights between 5 and 15 kg (11 to 33 lb). Trap bars run 20 to 34 kg (45 to 75 lb) and EZ curl bars 7 to 11 kg (15 to 25 lb).

How much does the bar weigh on a Smith machine?

There is no single answer, because the carriage is offset by a counterweight. Manufacturers publish start weights from 5 kg (11 lb) on a Precor Vitality to 13.6 kg (30 lb) on a Hammer Strength, and machines without a counterweight sit around 15 kg (33 lb). It depends on the machine, not on any industry standard. The only reliable ways to know are to check the manufacturer's spec sheet for that model or to measure it yourself.

How do I calculate the weight on a barbell?

Add the weight of every plate on one side of the bar, double it, then add the weight of the bar itself. A 20 kg men's barbell loaded with a 20 kg and a 10 kg plate per side is 20 + (30 x 2) = 80 kg.

Does the plate calculator include the bar?

Yes. Pick your bar at the top of the calculator and its weight is already in the total. Selecting the wrong bar is the single most common source of bar-maths errors.

Do I enter plates per side or in total?

Per side. Each tap adds one plate to both sides of the bar at once, which is how plates are actually loaded. Tap a plate already on the bar to take it back off.

What do the plate colours mean?

They follow the IPF competition standard, so the colour tells you the weight at a glance: in kilos, red is 25, blue 20, yellow 15 and green 10. Not every gym uses coloured plates, but most calibrated sets do.

Is this plate calculator free?

Yes, it is free and needs no sign-up. The same calculator is built into the Adiletix app alongside full workout tracking.

Lifts where the bar weight matters most

Every one of these is logged against a bar that is not always 20 kg. Technique guides in the exercise library:

Barbell Bench Press — targets chest, triceps.

Barbell Back Squat — targets quads, glutes.

Barbell Deadlift — targets glutes, hamstrings.

Trap Bar Deadlifts — targets glutes, hamstrings.

Smith Machine Bench Press — targets chest, triceps.

Individual bar weights

Working out what to load rather than what is already on the bar? Use the one rep max calculator or the RPE weight calculator to turn your one rep max into a working weight first.